Nothing much on P&E, Amazon or Google Books:
http://www.anotherealm.com/prededitors/pealw.htm
http://books.google.com/books?q=%22Warren+Cook+Agency%22&btnG=Search+Books

CaoPaux

12-14-2009, 08:53 PM

Between this (http://www.thefreelibrary.com/Audible+Announces+Three+Key+Management+Hires.-a058385909), this (http://www.linkedin.com/pub/warren-cook/11/76a/118), and the dates of the last agent directiores he's listed in, I think it's safe to conclude he left agenting in '97.